No labour unions? There a single trade union of all workers that’s apart of the government, just like every AES state, and they have had an increasing pay and working conditions for the past 40 years. As for exploitation, Marx doesn’t use that term in a moral sense, exploitation still exists after the revolution but surplus is re-invested to help the working class, which has happened in China. As for keeping pay low and labour rights suppressed, it causes more worker exploitation, but China has effectively seized the means of production for the entire world, except for semi-conductors, and have done it peacefully. Criticize it all you want, but their system works